Burglar Alarm Cost Calculator UK
Estimate the 2026 cost of installing a burglar alarm — by system type, property size and add-ons. Instant result, no email needed.
How This Calculator Works
We take a base cost by system type, add property size and any CCTV, then apply a regional labour multiplier from 2026 installer quotes. Two things move the final bill more than most homeowners expect in 2026: whether the system is wireless or hard-wired (a wired grade-3 install costs more in labour but is demanded by many insurers), and whether you bolt on cameras — adding a four-camera system alongside the alarm is now one of the most common upgrades. If cameras are on your list, size that spend with our CCTV installation cost guide or the CCTV cost calculator before you brief an installer, so the alarm and CCTV are quoted together on one visit.
System + property + add-ons (supply + fit)
- Bells-only — £650 base · Smart — £850 base
- Professionally monitored — £1,050 base (ARC + URN)
- 3 bed +£100 · 4 bed +£200 · 5+ bed +£350
- 4-camera CCTV add-on — +£700 (range £450–£1,200)
- Monitoring subscription £15–£40 / mo — extra, not in the estimate
Includes control panel, sensors, siren, keypad/app setup, VAT and standard installation. Ask your installer to confirm their NSI or SSAIB certification.
Regional Multipliers
- London 1.28× · South East 1.14× · South West 1.05×
- East of England 1.08× · Midlands 1.00× (baseline)
- North West 0.93× · North / Yorkshire 0.92×
- Wales 0.94× · Scotland 0.96× · NI 0.88×
Low/high band is ±20% around the mid estimate. A firm price follows a site survey.
Typical Burglar Alarm Prices (2026)
Supply-and-fit by system type, Midlands baseline (±15% band).
| System | Typical 2026 install cost | Notes |
|---|---|---|
| Bells-only (audible) alarm | £500–£800 | No monitoring fee |
| Professionally monitored alarm | £750–£1,300 | + £15–£40 / month ARC |
| Smart alarm + 4-camera CCTV | £1,200–£2,500+ | App control + video |
These figures power the calculator above — enter your own spec for a tailored estimate. For the full breakdown, read our complete cost guide.
What drives the cost of a burglar alarm
The system type sets the floor: a bells-only alarm that just sounds a siren is the cheapest, a smart app-controlled system sits in the middle, and a professionally monitored alarm linked to an Alarm Receiving Centre costs the most, because it adds the communicator, the monitoring contract and, for police response, a unique reference number. On top of that, the number of sensors is what really scales the price — a small flat might need three or four detectors, while a five-bedroom house with several entry points, a garage and multiple zones can need ten or more, each with its own cabling or battery.
How the system is installed matters as much as what it is. A wireless kit is quick to fit and tidy, but many insurers on higher-value homes still specify a hard-wired Grade 3 system, which costs more in labour and cable routing. Add-ons stack on top: a set of CCTV cameras is now one of the most common upgrades, and smart locks or extra keypads add more again. Monitoring is a running cost rather than part of the install, and London jobs run above the national rate. Our burglar alarm cost guide sets out each system and grade, the CCTV installation cost guide sizes the camera side if you are quoting both together, and you can compare vetted local installers through our burglar alarm installation hub — always ask to see an installer’s NSI or SSAIB certification before you sign.
Frequently Asked Questions
How much does a burglar alarm cost in 2026?
Does the price include monitoring?
Is a monitored alarm worth it?
Will a burglar alarm lower my home insurance?
What alarm grade do I need?
How accurate is this burglar alarm cost calculator?
What does the alarm estimate include and exclude?
Why might a real alarm quote differ from the calculator?
Should I choose a wired or wireless burglar alarm?
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